Arerti weather in September
In September, Arerti sees average daytime highs of 41°C and overnight lows near 29°C, with 7 mm of rain across 2.8 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.
Day-to-day highs hold fairly steady near 41°C through the month. The sky is clear or mostly clear about 64% of the time in September, and the air most often feels muggy.
Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Arerti's 10th-clearest and 11th-windiest month. For the whole year in context, see Arerti's year-round climate.
- Daytime high
- 41°
- 5th warmest
- Overnight low
- 29°
- 9th coldest
- Rainfall
- 7 mm
- 2.8 wet days
- Daylight
- 12 h 06 min
- 6:09 AM – 6:14 PM
- Cloud cover
- 37%
- 10th clearest
- Wind
- 11 km/h
- 11th windiest
- Solar energy
- 6.14 kWh/m²
- Travel score
- 0.0
- out of 10
Temperature in September
Day-to-day highs hold fairly steady near 41°C through the month.
A typical September day in Arerti reaches about 41°C in the afternoon and slips back to 29°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 39°C and 43°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 40 | 40 | 40 | 40 | 40 |
| Avg low (°C) | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 41 | 30 |
| 2 | 41 | 30 |
| 3 | 41 | 29 |
| 4 | 41 | 29 |
| 5 | 41 | 29 |
| 6 | 41 | 29 |
| 7 | 41 | 29 |
| 8 | 41 | 29 |
| 9 | 41 | 29 |
| 10 | 41 | 29 |
| 11 | 41 | 29 |
| 12 | 41 | 29 |
| 13 | 41 | 29 |
| 14 | 41 | 29 |
| 15 | 41 | 29 |
| 16 | 41 | 29 |
| 17 | 41 | 29 |
| 18 | 41 | 28 |
| 19 | 41 | 28 |
| 20 | 41 | 28 |
| 21 | 41 | 28 |
| 22 | 41 | 28 |
| 23 | 41 | 28 |
| 24 | 41 | 28 |
| 25 | 41 | 28 |
| 26 | 40 | 28 |
| 27 | 40 | 28 |
| 28 | 40 | 28 |
| 29 | 40 | 28 |
| 30 | 40 | 28 |
How September really feels in Arerti
Once humidity and wind are folded in, September averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Arerti weather by month
How September compares with the rest of the year at a glance. September is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 33° / 23° | 3 | 0.7 | 11.3 | 4.3 |
| Feb | 35° / 24° | 3 | 0.6 | 11.5 | 3.3 |
| Mar | 37° / 25° | 7 | 1.3 | 11.9 | 1.8 |
| Apr | 40° / 28° | 12 | 2.4 | 12.3 | 0.3 |
| May | 42° / 28° | 8 | 1.7 | 12.6 | 0.0 |
| Jun | 43° / 29° | 1 | 0.6 | 12.8 | 0.0 |
| Jul | 42° / 30° | 10 | 3.2 | 12.7 | 0.0 |
| Aug | 41° / 30° | 19 | 5.9 | 12.5 | 0.0 |
| Sep | 41° / 29° | 7 | 2.8 | 12.1 | 0.0 |
| Oct | 39° / 27° | 9 | 1.8 | 11.7 | 0.7 |
| Nov | 37° / 25° | 4 | 0.7 | 11.4 | 2.2 |
| Dec | 35° / 24° | 1 | 0.3 | 11.2 | 3.7 |
Cloud cover in September
The sky is clear or mostly clear about 64% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to open up as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 75 | 76 | 76 | 77 | 78 | 79 | 79 | 80 | 81 | 81 | 83 | 83 | 83 | 85 | 85 | 86 | 86 | 86 | 87 | 87 | 87 | 87 | 88 | 88 | 88 | 89 | 89 | 89 | 89 | 89 |
| Cloudier (%) | 25 | 24 | 24 | 23 | 22 | 21 | 21 | 20 | 19 | 19 | 17 | 17 | 17 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 75 | 25 |
| 2 | 76 | 24 |
| 3 | 76 | 24 |
| 4 | 77 | 23 |
| 5 | 78 | 22 |
| 6 | 79 | 21 |
| 7 | 79 | 21 |
| 8 | 80 | 20 |
| 9 | 81 | 19 |
| 10 | 81 | 19 |
| 11 | 83 | 17 |
| 12 | 83 | 17 |
| 13 | 83 | 17 |
| 14 | 85 | 15 |
| 15 | 85 | 15 |
| 16 | 86 | 14 |
| 17 | 86 | 14 |
| 18 | 86 | 14 |
| 19 | 87 | 13 |
| 20 | 87 | 13 |
| 21 | 87 | 13 |
| 22 | 87 | 13 |
| 23 | 88 | 12 |
| 24 | 88 | 12 |
| 25 | 88 | 12 |
| 26 | 89 | 11 |
| 27 | 89 | 11 |
| 28 | 89 | 11 |
| 29 | 89 | 11 |
| 30 | 89 | 11 |
Chance of precipitation in September
Arerti gets around 7 mm of rain over 2.8 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 10% and peaks near 17% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 17 | 17 | 16 | 16 | 15 | 14 | 13 | 12 | 11 | 11 | 10 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 |
| Rain chance (%) | |
|---|---|
| 1 | 17 |
| 2 | 17 |
| 3 | 16 |
| 4 | 16 |
| 5 | 15 |
| 6 | 14 |
| 7 | 13 |
| 8 | 12 |
| 9 | 11 |
| 10 | 11 |
| 11 | 10 |
| 12 | 9 |
| 13 | 8 |
| 14 | 8 |
| 15 | 7 |
| 16 | 7 |
| 17 | 7 |
| 18 | 7 |
| 19 | 7 |
| 20 | 6 |
| 21 | 6 |
| 22 | 6 |
| 23 | 7 |
| 24 | 7 |
| 25 | 7 |
| 26 | 7 |
| 27 | 7 |
| 28 | 8 |
| 29 | 8 |
| 30 | 8 |
Humidity in September
Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the muggy band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 80% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| Comfortable (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 |
| Humid (%) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 18 |
| Muggy (%) | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 59 | 57 | 57 | 57 | 57 | 57 | 56 | 56 | 56 | 55 | 54 | 55 | 54 | 54 | 53 | 53 | 53 | 50 | 50 | 49 | 48 | 46 | 45 |
| Oppressive (%) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 22 | 22 | 23 | 23 | 23 | 24 | 25 | 25 | 26 | 26 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 28 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 0 | 2 | 16 | 57 | 24 | 1 |
| 2 | 0 | 2 | 16 | 57 | 24 | 1 |
| 3 | 0 | 2 | 16 | 57 | 24 | 1 |
| 4 | 0 | 2 | 16 | 57 | 24 | 1 |
| 5 | 0 | 2 | 16 | 57 | 24 | 1 |
| 6 | 0 | 2 | 16 | 57 | 24 | 1 |
| 7 | 0 | 2 | 16 | 57 | 24 | 1 |
| 8 | 0 | 2 | 16 | 59 | 23 | 0 |
| 9 | 0 | 3 | 17 | 57 | 23 | 0 |
| 10 | 0 | 3 | 17 | 57 | 23 | 0 |
| 11 | 0 | 3 | 17 | 57 | 23 | 0 |
| 12 | 0 | 3 | 18 | 57 | 22 | 0 |
| 13 | 0 | 3 | 18 | 57 | 22 | 0 |
| 14 | 0 | 3 | 18 | 56 | 23 | 0 |
| 15 | 0 | 3 | 18 | 56 | 23 | 0 |
| 16 | 0 | 3 | 18 | 56 | 23 | 0 |
| 17 | 0 | 3 | 18 | 55 | 24 | 0 |
| 18 | 0 | 3 | 18 | 54 | 25 | 0 |
| 19 | 0 | 3 | 17 | 55 | 25 | 0 |
| 20 | 0 | 3 | 17 | 54 | 26 | 0 |
| 21 | 0 | 3 | 17 | 54 | 26 | 0 |
| 22 | 0 | 3 | 17 | 53 | 27 | 0 |
| 23 | 0 | 3 | 16 | 53 | 28 | 0 |
| 24 | 0 | 3 | 16 | 53 | 28 | 0 |
| 25 | 0 | 4 | 16 | 50 | 29 | 1 |
| 26 | 0 | 4 | 16 | 50 | 29 | 1 |
| 27 | 0 | 5 | 16 | 49 | 29 | 1 |
| 28 | 1 | 5 | 17 | 48 | 29 | 1 |
| 29 | 1 | 6 | 17 | 46 | 29 | 1 |
| 30 | 1 | 6 | 18 | 45 | 28 | 2 |
Wind in September
Winds average 11 km/h in September.
Across September, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 10 | calm |
| 30 | 9 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over September. Sunrise moves from 6:09 AM to 6:10 AM, and sunset from 6:25 PM to 6:03 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 | 6:10 |
| Sunset (PM) | 6:25 | 6:25 | 6:24 | 6:23 | 6:22 | 6:22 | 6:21 | 6:20 | 6:19 | 6:19 | 6:18 | 6:17 | 6:16 | 6:16 | 6:15 | 6:14 | 6:13 | 6:12 | 6:12 | 6:11 | 6:10 | 6:09 | 6:09 | 6:08 | 6:07 | 6:06 | 6:06 | 6:05 | 6:04 | 6:03 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.3 | 6:09 | 6:25 |
| 2 | 12.3 | 6:09 | 6:25 |
| 3 | 12.2 | 6:09 | 6:24 |
| 4 | 12.2 | 6:09 | 6:23 |
| 5 | 12.2 | 6:09 | 6:22 |
| 6 | 12.2 | 6:09 | 6:22 |
| 7 | 12.2 | 6:09 | 6:21 |
| 8 | 12.2 | 6:09 | 6:20 |
| 9 | 12.2 | 6:09 | 6:19 |
| 10 | 12.2 | 6:09 | 6:19 |
| 11 | 12.1 | 6:09 | 6:18 |
| 12 | 12.1 | 6:09 | 6:17 |
| 13 | 12.1 | 6:09 | 6:16 |
| 14 | 12.1 | 6:09 | 6:16 |
| 15 | 12.1 | 6:09 | 6:15 |
| 16 | 12.1 | 6:09 | 6:14 |
| 17 | 12.1 | 6:09 | 6:13 |
| 18 | 12.1 | 6:09 | 6:12 |
| 19 | 12.0 | 6:09 | 6:12 |
| 20 | 12.0 | 6:09 | 6:11 |
| 21 | 12.0 | 6:10 | 6:10 |
| 22 | 12.0 | 6:10 | 6:09 |
| 23 | 12.0 | 6:10 | 6:09 |
| 24 | 12.0 | 6:10 | 6:08 |
| 25 | 12.0 | 6:10 | 6:07 |
| 26 | 11.9 | 6:10 | 6:06 |
| 27 | 11.9 | 6:10 | 6:06 |
| 28 | 11.9 | 6:10 | 6:05 |
| 29 | 11.9 | 6:10 | 6:04 |
| 30 | 11.9 | 6:10 | 6:03 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 6.14 kWh/m².
For context, solar energy here swings from a low near 4.97 kWh/m² to a high of 6.92 kWh/m² in May across the year — September's 6.14 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.1 | Intense |
| 2 | 6.1 | Intense |
| 3 | 6.1 | Intense |
| 4 | 6.1 | Intense |
| 5 | 6.1 | Intense |
| 6 | 6.1 | Intense |
| 7 | 6.1 | Intense |
| 8 | 6.1 | Intense |
| 9 | 6.1 | Intense |
| 10 | 6.1 | Intense |
| 11 | 6.1 | Intense |
| 12 | 6.1 | Intense |
| 13 | 6.1 | Intense |
| 14 | 6.1 | Intense |
| 15 | 6.1 | Intense |
| 16 | 6.1 | Intense |
| 17 | 6.1 | Intense |
| 18 | 6.1 | Intense |
| 19 | 6.1 | Intense |
| 20 | 6.1 | Intense |
| 21 | 6.1 | Intense |
| 22 | 6.1 | Intense |
| 23 | 6.1 | Intense |
| 24 | 6.1 | Intense |
| 25 | 6.1 | Intense |
| 26 | 6.1 | Intense |
| 27 | 6.1 | Intense |
| 28 | 6.1 | Intense |
| 29 | 6.1 | Intense |
| 30 | 6.1 | Intense |
Hazard calendar for Arerti
In September, Arerti sits inside its dust season. The full year is below, with each hazard's peak months called out.
Arerti sees seasonal dust haze (June–September), heaviest in July.
Is September a good time to visit Arerti?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a weaker month for outdoor sightseeing in Arerti.
What to pack for Arerti in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Arerti sees daytime highs around 41°C and nights near 29°C. Pack light clothes and sun protection.
UV index in Arerti in September
Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Arerti peaks around March 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 8 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 10 | 11 | 13 | 12 | 11 | 9 | 8 | 10 | 11 | 10 | 9 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Very high | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 12 | Extreme |
| May | 11 | Extreme |
| Jun | 9 | Very high |
| Jul | 8 | Very high |
| Aug | 10 | Very high |
| Sep | 11 | Extreme |
| Oct | 10 | Very high |
| Nov | 9 | Very high |
| Dec | 8 | Very high |
Air quality in Arerti in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Arerti is worst in August — around 37 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (October, 17 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 24 | 27 | 30 | 24 | 24 | 32 | 36 | 37 | 25 | 17 | 18 | 20 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 24 | Moderate |
| Feb | 27 | Moderate |
| Mar | 30 | Moderate |
| Apr | 24 | Moderate |
| May | 24 | Moderate |
| Jun | 32 | Moderate |
| Jul | 36 | Poor |
| Aug | 37 | Poor |
| Sep | 25 | Moderate |
| Oct | 17 | Moderate |
| Nov | 18 | Moderate |
| Dec | 20 | Moderate |
Where is Arerti?
Arerti sits at 13.9°N, 40.7°E, -111 m above sea level, in Ethiopia. The nearest listed city is Wik’ro, 116 km away.
Topography around Arerti
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Arerti.
Within 3 km, the terrain around Arerti has only modest variations in elevation — a maximum elevation change of 39 m around an average of -111 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 265 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,617 m.
The land around Arerti is covered by bare terrain (99%) within 3 km, bare terrain (99%) within 16 km, and bare terrain (97%) within 80 km.
Ethiopia travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type C / E / F / L
- 220 V · 50 Hz
- Prices
- ≈ 37% of US
- price level, 2025
- GDP per capita
- $933
- 2025
- Happiness
- 4.0 / 10
- World Happiness, 2025
- Safe drinking water
- 14%
- of population, 2024
- Homicide rate
- 8.5
- per 100k, 2012
- Road deaths
- 28.2
- per 100k/yr, 2019
- Income group
- Low
- World Bank
- English
- Low
- EF EPI 499
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Arerti (13.95°, 40.6667°, elevation -111 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).